| Previous | Next |
| ERROR_MONITOR_INVALID_SERIAL_NUMBER_MONDSC_BLOCK | ERROR_MONITOR_NO_MORE_DESCRIPTOR_DATA |
ERROR_MONITOR_INVALID_USER_FRIENDLY_MONDSC_BLOCK
ERROR_MONITOR_INVALID_USER_FRIENDLY_MONDSC_BLOCK means that the parser rejected the display-product-name descriptor used for a human-readable monitor name. This is EDID data, not the Windows-generated display path and not the serial-number descriptor.
EDID field involved
The product-name descriptor uses tag FCh. It contains up to 13 ASCII characters; a shorter name ends with a line-feed byte and the remaining positions are padded with spaces. The descriptor's leading bytes and tag must also identify it as a display descriptor rather than a detailed timing block.
What to check
- Inspect the complete 18-byte descriptor, not only text that a utility rendered as the monitor name.
- Compare the tag and padding with a known-good raw EDID capture of the same model.
- Keep this separate from a bad product serial descriptor: the two fields use different tags and answer different identification questions.
VESA: display product name descriptor, tag FCh
Microsoft: WmiMonitorID and E-EDID identification data
Looking for a different code? Search another status or error code.